Scout's large and small starter kits on Amazon are a good way to get the starter devices you need for your system such as door panels, entry sensors and key fobs. One downside to Scout Alarm is that you must pay a monthly
fee $9. 99 to use the system, but this fee pays for built in cellular backup, which is often more expensive with other DIY home security systems. There's no contract so you can cancel
service if you don't need it. You can also upgrade a Scout Alarm system to include professional monitoring $19. 99/month, so you can get extra protection when you're unable to monitor your home yourself.